Automatic train-stop.



UNIIEI SFATES IA'lENl OFFICE.

AUTOMATIC TRAIN-STOP.

Specification of Letters Patent.

Patented S"] l3. 3, 1907.

Application film} Ni vfiilllll'l 28,1906. Serial Nu. 345,505.

this in the prvsvnl; insliunrv 'uimisting of a 'pifw mllyused in combinaiioh with suitable mums for autoimlmu'v i uni-lug a mind.

' the runlavlrail is iitsl, Llli' upvmuun ul l'lw pal-1: will 1w as iniluws: AH suim as Hm brush n11 ilulm-nmnlivu makes centmt with rail 11. a. riruuit will bu cumse4,sea

the contact rail and the brush leaves the contact rail before the right-hand wheel passes over the adjacent joint 0, for the purpose set lorth.

10. In combination with automatic electrical devices on the locomotive embodying a circuit one branch of which in connected to one o! the axles and the other branch of which is connected to an ineuiatcd brush or contact shoe, of madbed devices embodying blocks of rails insulated from each other at their ends as at 0, these points of Insulntion being out of line with each other transversely, the Insulated joint at the right side being at a point ahead 0! iii: companion jaint, and a contact rail on the rnadhed ad- U10 prcecnce at two witnesses this 21st day 0! November IIIRAM (1L SEDGWICK Witnensea:

'8' H. Rom-2mg,

BnNnm'r'rA ROBERTS. 

